%0 Journal Article %A W. B. R. Lickorish %A S. Úwierczkowski %T A characterization of the ball %J Colloquium Mathematicum %D 1964 %P 235-246 %V 13 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-13-2-235-246/ %R 10.4064/cm-13-2-235-246 %G en %F 10_4064_cm_13_2_235_246